Device for drying lumber



Sept. 14 1926.

B. M. FoRsY'THE DEVICE FOR' DRYING LUMBER ,iile April 192d 2 g WITNESSES Patented Sept. 14, 1926 nuirsn STATES PATENT OFFICE.

BILL MARCUS FORSYTHE, OF DUBACI-I, LOUISIALNA, ASSIGNOR F ONE-FOURTH 'I'O DAVID A. POLLOCK, OE IBERNICE, LOUISIANA.

Device FOR DRYING LUMBER.

Application filed. April 30, 1926. Serial No. 105=,723.

This invention relates to a device for drying lumber by steam heat.

The object of the invention is to provide a steam heating system which may be used for drying lumber quickly after it is sawed, and while it is stacked in an open yard, so that it will be ready for the planer within a day or so from the time it is sawed.

The system comprising my invention is so arranged that units may be connected thereto for drying any number of stacks, and each unit is provided with horizontal pipes above which the lumber is stacked, and with vertical pipes which may be detached so as not to be in the way while the stack is being formed, and may be subsequently replaced, after the stacking has been completed, by inserting them downwardly from the top of the stack through spaces left therein for that purpose.

The specific construction of the invention, the manner in which it is used, and the advantages resulting; therefrom will be more fully explained in connection with the accompanying drawing, which illustrates the same in its preferred form. I

In the drawing:

Figure 1 is a side elevation of two units of the invention, and illustrating the relation of the stack of lumber thereto.

Figure 2 is a plan view of the same", Referring in detail to the drawing, the numeral 5 designates a main steam pipe which is adapted to supply steam, and which is connected with a suitable steam heating plant. Any number of branches 6 may be connected to the pipe 5 according to the number of units to be used, and each branch is provided with a valve 7. Each unit comprises a pipe 8 connected transversely to one of the branches 6, and to the pipe 8 are connected a number of horizontal pipes 9, so arranged that the stack of lumber may be piled above them, as indicated at 10 in Figure 1. Each stack of lumber is supportated with that particular unit.

with theirclosed upper ends terminating at or near the top of the stack. n

hen stacking the lumber, the upright pipes 13 will generally be'detached from the Ts 14 so as to be out of the way, and in piling the lumber, spaces 15 will be left a above the horizontal pipes 9, sufficiently wide to permit the uprights to be inserted downwardly therethrough after the stack is formed, and to be again connected with the system.

It is to be understood that all of the valves 7 will be normally closed, but any one of them may be opened whenever it is desired to dry the stack of lumber associ- By using this device, it is not necessary to put the lumber into akiln, but it may be piled in dried andready for the planer within twenty-four hours While I have shown and described the invention in detail, it is to be understood that the size, proportion and relative arrange ment of the various pipes may be considerably modified without any material departure from the salient features of the invention as claimed.

What is claimed is A device for drying lumber in the open air comprising, in combination, a main steam'pipe, a plurality of heating units, and means for independently connecting any selected unit or units to said main pipe, each unit comprising a number of inter-connected horizontal pipes above which a stack of lum her is to be piled, and a number of upright branches connected to each horizontal pipe and closed at their upper ends, said upright branches being detachable, so that theymay be taken out of the way while the lumber is being piled, and then replaced by inserting them downwardly from the top of the stack through spaces left therein for that purposewhile the lumber was being stacked.

BILL MARCUS FORSYTHE.

the open yard in the usual manner, and be 

